SUMMARY If your mouse pointer is placed in the area where KRunner's drop-down list will appear, once you start typing, KRunner will shortly switch the focus to whichever item happens to be under the pointer. This is _without_ moving the mouse. STEPS TO REPRODUCE 1. Place the mouse below KRunner (assuming it's at the top of the screen); perhaps 25% of the way down the screen 2. Start typing something that will result in a lot of entries shown OBSERVED RESULT KRunner lists a number of results; the top ("best") result is highlighted/selected. After a moment, the item which happens to be under the mouse pointer gets selected instead. EXPECTED RESULT The top result stays selected unless I actively move my mouse. That way I can just hit ENTER to select the (most likely) correct entry instead of an arbitrary entry further down the list. SOFTWARE/OS VERSIONS Linux/KDE Plasma: openSUSE Tumbleweed 20250801 KDE Plasma Version: 6.4.3 KDE Frameworks Version: 6.16.0 Qt Version: 6.9.1 ADDITIONAL INFORMATION This did not first appear in 6.4.3, I'm sure; I've noticed it for, probably, months(?) but it was intermittent and I never looked for the root cause till today. While I've got openSUSE listed here as my OS, it also occurs for me on another system where I've built from source.
Thanks for the bug report! I wasn't able to reproduce this with Fedora 42 Plasma 6.4.3 in a VM On one system with git-master, I was able to reproduce it but it's intermittent, about every 5th attempt On a second system with git-master, I was consistently able to reproduce it. Both are laptops. I noticed I couldn't seem to reproduce it if an external mouse was connected. With just the touchpad available, I was able to 1. Open KRunner, position the mouse below it 2. Type in a 3. If the highlight doesn't change, press backspace and then a again .
It's X11-specific . *** This bug has been marked as a duplicate of bug 508524 ***